One of my questions is gears. Right now I have 410 gears with an sm465. The engine is a 468 ci ( 450-500 horses and about the same in torque) 44" boggers. Did really well in the mud with that set up. I'm going to be more flexy and withthe switch over to auto I will definately need to upgrade gears. I am not sure if I should go 488's or 513's. Don't want to loose wheelspin. I am not looking for a rockcrawler. I want an all around wheeling truck that can do mud, a couple of mud races, a bit of rock climbing, hills- that sort of thing

I am runnin 38.5's with 4:56's, I paln on steppin up to the plate next year with 1 ton axles sporting 5:38's &amp; 44 Boggers!
4:56's right now are a little under powered! But that might be due to Stock GM Crate 350! Soon I hope to have BBC! Mo Power! Good thing! LOL!
Bill

With the TH400 I'd definitely go 5.13's. Unlike the 465 you aren't limited to one gear and the rev limiter in the mud. With the torque you have it'll keep shifting as needed and will prolly have more wheelspeed even though the ratio is deeper.

The deeper gears will also put more power to the ground...

4HI, 50 MPH wheelspeed with 5.13's and the TH400 in first would be 5100 RPM...

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